Need Advice -- Transmission Issue?
Thread Starter
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Joined: Dec 2005
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From: Dallas Texas
Need Advice -- Transmission Issue?
My 2009 Coupe with A6 has 7000 miles on the odometer, never raced or abused. For the last few weeks I've noticed a "tock" sound from the rear which seems to be associated with gear changes in the auto transmission (best guess). Not real loud, but noticeable and definitely a change from before.
Questions --
1. Is this sound likely to be coming from the auto transmission, or rather from some other source?
2. Is it normal? I don't like to hear the sound of gear changes in the A6. I had a 2006 Coupe for 4 years and never heard a sound like this.
3. What might be done to eliminate it?
Thanks in advance for any advice. I'm probably looking at a trip to the dealer service department.
Questions --
1. Is this sound likely to be coming from the auto transmission, or rather from some other source?
2. Is it normal? I don't like to hear the sound of gear changes in the A6. I had a 2006 Coupe for 4 years and never heard a sound like this.
3. What might be done to eliminate it?
Thanks in advance for any advice. I'm probably looking at a trip to the dealer service department.
Last edited by tanko; Oct 19, 2010 at 01:59 PM.
Instructor
Joined: May 2009
Posts: 211
Likes: 3
From: Dallas, TX
Do you only hear it on upshifts? Can you change it with throttle input (tip-in / tip-out)? Does it happen on downshifts? Do you hear it when you manually upshift? Sorry for the 20 questions just trying to get a better idea of what you have going on.
Thread Starter
Pro
Joined: Dec 2005
Posts: 650
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From: Dallas Texas
I seem to hear it when the car is slowing down, not when accelerating or upshifting.
Thread Starter
Pro
Joined: Dec 2005
Posts: 650
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From: Dallas Texas
Resolution
Posting the resolution to this problem for the benefit of those who might at some point experience the same one --
I took the car to the dealer yesterday. Within an hour they had diagnosed and resolved the problem. Turns out the "Rear Axle Nut" needed to be tightened. I've no idea where this nut is located or what it does. I drove the car about 15 miles on errands afterward and the noise is GONE!
I love it when solutions are so easy. Apparently this problem is fairly common, according to the service writer, so they went pretty quickly to the correct cause. No charge for the work, it was covered under warranty. Another excellent service experience from James Wood Chevrolet in Denton.
I took the car to the dealer yesterday. Within an hour they had diagnosed and resolved the problem. Turns out the "Rear Axle Nut" needed to be tightened. I've no idea where this nut is located or what it does. I drove the car about 15 miles on errands afterward and the noise is GONE!
I love it when solutions are so easy. Apparently this problem is fairly common, according to the service writer, so they went pretty quickly to the correct cause. No charge for the work, it was covered under warranty. Another excellent service experience from James Wood Chevrolet in Denton.
Last edited by tanko; Oct 22, 2010 at 01:36 PM.
Instructor
Joined: May 2009
Posts: 211
Likes: 3
From: Dallas, TX
Posting the resolution to this problem for the benefit of those who might at some point experience the same one --
I took the car to the dealer yesterday. Within an hour they had diagnosed and resolved the problem. Turns out the "Rear Axle Nut" needed to be tightened. I've no idea where this nut is located or what it does. I drove the car about 15 miles on errands afterward and the noise is GONE!
I love it when solutions are so easy. Apparently this problem is fairly common, according to the service writer, so they went pretty quickly to the correct cause. No charge for the work, it was covered under warranty. Another excellent service experience from James Wood Chevrolet in Denton.
I took the car to the dealer yesterday. Within an hour they had diagnosed and resolved the problem. Turns out the "Rear Axle Nut" needed to be tightened. I've no idea where this nut is located or what it does. I drove the car about 15 miles on errands afterward and the noise is GONE!
I love it when solutions are so easy. Apparently this problem is fairly common, according to the service writer, so they went pretty quickly to the correct cause. No charge for the work, it was covered under warranty. Another excellent service experience from James Wood Chevrolet in Denton.
Last edited by 1988Bullitt; Oct 27, 2010 at 12:35 PM.
